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  • 1
    Electronic Resource
    Electronic Resource
    The effect of ligands, solvent and temperature on the reactions of allyltin(IV) compounds with singlet oxygen
    Amsterdam : Elsevier
    Journal of Organometallic Chemistry 430 (1992), S. 287-298 
    Details
    ISSN: 0022-328X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0022-328X(92)83265-J
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  • 2
    Electronic Resource
    Electronic Resource
    Ene reactions of allylic tin compounds with singlet oxygen
    Amsterdam : Elsevier
    Tetrahedron Letters 32 (1991), S. 1745-1748 
    Details
    ISSN: 0040-4039
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/S0040-4039(00)74319-X
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  • 3
    Electronic Resource
    Electronic Resource
    Thorium in man and environment uptake and clearance (1987)
    Springer
    Journal of radioanalytical and nuclear chemistry 115 (1987), S. 149-158 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The intake and tissue distribution of thorium (2 3 2Th) was studied in an urban (Bombay) population in India. From the analysis of 16 whole diet samples, the average daily intake through food was found to be 2 μg (range 0.8–4.3 μg·d−1). The estimated intake through drinking water and inhalation comes out to be 0.03 and 0.02 μg per day. From the analysis of human autopsy tissue samples it is observed that the concentration ranges in lungs and bone are 1.5–16 μg/kg and 0.2–9.0 μg/kg fresh weight respectively. The average urinary concentration is 12 ng/1 (range 7–22 ng/l for 10 samples). Among the different body tissues, pulmonary lymph nodes were found to contain the highest concentration (geometric mean 53.4 μg/kg, range 31.4–85.5 μg/kg for 6 samples). Analysis of the samples was done by the neutron activation technique. 311.8 keV gamma photons of2 3 3Pa which is the activation product of2 3 2Th, were counted after chemical separation. A 54 cm3 intrinsic Ge detector coupled to 1024-channel analyser was used. Using the average lung content and the daily average intake values of thorium through inhalation, the clearance half-time from lung was estimated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02041983
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  • 4
    Electronic Resource
    Electronic Resource
    Daily intake of uranium by urban indian population (1990)
    Springer
    Journal of radioanalytical and nuclear chemistry 138 (1990), S. 67-72 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The daily intake of uranium (238U) by an urban Indian adult population was estimated by the analysis of a duplicate diet, drinking water, and air samples using neutron activation and radio-chemical separation. The uranium intake through food is 0.55 μg which is much larger than that from drinking water and air, at 0.09 and 0.01 μg, respectively. The total daily dietary intake of uranium, calculated from the concentrations measured in the individual food ingredients and their daily consumption (based on the national survey), is found to be 2.2 μg which is a factor of 3.5 higher than that based on a duplicate urban diet. The maximum contribution to the daily intake is found to be from cereals. The lower intake by the urban population is most likely due to their lower food consumption.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02049348
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  • 5
    Electronic Resource
    Electronic Resource
    Thorium in human blood serum, clot, and urine comparison with ICRP excretion model (1990)
    Springer
    Journal of radioanalytical and nuclear chemistry 138 (1990), S. 139-144 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Neutron activation followed by a simple radio-chemical separation procedure was employed to determine the concentrations of thorium (232Th) in human blood serum, clot, and urine of normal subjects and three groups of occupationally exposed persons. The thorium concentrations in the blood serum, clot, and urine samples of the exposed groups were distinctly higher than those of the other study groups and were found to increase with increasing occupational length of the persons. Daily urinary excretion is correlated with serum thorium burden and it is estimated that the daily excreted thorium is about 15% of the thorium in the serum pool.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02049356
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  • 6
    Electronic Resource
    Electronic Resource
    Simultaneous determination of232Th and238U in biological samples. Application to the estimation of their daily intake through diet (1992)
    Springer
    Journal of radioanalytical and nuclear chemistry 162 (1992), S. 163-169 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A simple method employing neutron activation and radiochemical separation was developed for simultaneous determination of the concentrations of232Th(Th) and238U(U) in biological materials. Using this method, it is possible to detect 0.05 and 0.2 ng of Th and U, respectively, in the samples. This method was applied to determine the daily dietary intake of these two nuclides by the population living in the high background areas of India (Monazite area), where the soil contains very high levels of these two nuclides. The comparison of the daily intakes by the population living in high and normal background areas showed significantly higher intake of these two nuclides by the high background population.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02039937
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  • 7
    Electronic Resource
    Electronic Resource
    Analytical Quality Assurance Procedures Developed for the IAEA's Reference Asian Man Project (Phase 2) (2000)
    Springer
    Journal of radioanalytical and nuclear chemistry 245 (2000), S. 123-126 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Analytical quality assurance procedures adopted for use in the IAEA Co-ordinated Research Project on Ingestion and Organ Content of Trace Elements of Importance in Radiological Protection are designed to ensure comparability of the analytical results for Cs, I, Sr, Th, U and other elements in human tissues and diets collected and analysed in nine participating countries. The main analytical techniques are NAA and ICP-MS. For sample preparation, all participants are using identical food blenders which have been centrally supplied after testing for contamination. For quality control of the analyses, six NIST SRMs covering a range of matrices with certified and reference values for the elements of interest have been distributed. A new Japanese reference diet material has also been developed. These quality assurance procedures are summarized here and new data are presented for Cs, I, Sr, Th and U in the NIST SRMs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006712813369
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  • 8
    Electronic Resource
    Electronic Resource
    Relevance of ICRP metabolic model of Th in bio-assay monitoring (1992)
    Springer
    Journal of radioanalytical and nuclear chemistry 156 (1992), S. 55-64 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract This paper compares the urinary excretion levels of Th obtained in bio-assay monitoring using the neutron activation technique with those predicted by applying the ICRP metabolic model to the measured Th activity in chest and total body of a group of Thorium plant workers. The results indicated much lower urinary Th excretion as compared to what was expected on the basis of the ICRP model. Lower urinary excretion in occupational subjects is explained in terms of negligible contribution of skeleton and soft tissue to the activity excreted in urine. It is suggested that the existing model should be modified to enable it to be applicable to the bio-assay monitoring of occupational workers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02037421
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  • 9
    Electronic Resource
    Electronic Resource
    Daily requirements of Fe, Co and Se during infancy (1984)
    Springer
    Journal of radioanalytical and nuclear chemistry 84 (1984), S. 177-183 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The daily intakes of trace elements by infants showing optimal pattern of growth are used as the basis to estimate the requirements of Fe, Co and Se during infancy. Since milk is the only food and source of nutrition in the first few months of life, the requirements of these elements are calculated from their average concentrations in human milk and the volume of milk required to supply sufficient amount of energy for maintenance and healthy growth of infants. The concentrations of the three elements in human milk were determined, using the technique of neutron activation followed by radiochemical separation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02038194
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  • 10
    Electronic Resource
    Electronic Resource
    Distribution of thorium in human tissues (1985)
    Springer
    Journal of radioanalytical and nuclear chemistry 88 (1985), S. 225-229 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Neutron activation followed by simple radiochemical separation was employed to determine the concentration of thorium (232Th) in different human tissues. The median232Th concentrations (ng/g) in tissues with ranges given in parentheses are lymph nodes: 64.7 (31.4–85.5), lungs: 9.2 (1.5–16.0), hair: 5.2 (2.9–11.0), kidney: 1.7 (0.9–4.0), liver: 0.9 (0.2–4.9) and blood 0.01 (0.006–0.030). The reliability of analysis was tested by analyzing standard reference material Orchard Leaves (US, NBS).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02036999
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